By now the two have diverged enough that switching configurations between both is an issue. Vim is still much more widely available (installed by default) than Neovim, which makes it the obvious choice to maintain your configurations for if you don’t specifically care about Neovim features. Furthermore, additions like Lua support, while pragmatic, make Neovim feel less organic to me.
In that vein, you are probably fine with whatever version of Vim is installed by your distro. But if you want LSP support for more cutting-edge stuff (like Rust), you probably need to install the latest release of Neovim by hand, not using the OS packaging system. Because stuff is changing too fast.
